public override Stereo <float> this[float offset] {
get {
var ps = this.MakeInterpolationParameters(offset);
var former = ps.Item1;
var latter = ps.Item2;
var offFrac = ps.Item3;
return(Stereo.Create(this.Interpolate(former.Left, latter.Left, offFrac),
this.Interpolate(former.Right, latter.Right, offFrac)));
}
}
private static IEnumerable <Stereo <float> > MakeStereo(IEnumerable <float> samples)
{
float?left = null;
foreach (var sample in samples)
{
if (left.HasValue)
{
var right = sample;
yield return(Stereo.Create(left.Value, right));
left = null;
}
else
{
left = sample;
}
}
}
public Node <Stereo <float> > AsStereoFloat()
{
if (this.ValueType == typeof(Stereo <float>))
{
return((Node <Stereo <float> >) this);
}
else if (this.ValueType == typeof(Stereo <int>))
{
return(Node.Create(((Node <Stereo <int> >) this).UseAsStream().Select(v => Stereo.Create((float)v.Left, (float)v.Right)), false, this));
}
else if (this.ValueType == typeof(float))
{
return(((Node <float>) this).AsStereo());
}
else if (this.ValueType == typeof(int))
{
return(((Node <int>) this).AsStereo().AsStereoFloat());
}
throw new InvalidCastException($"cannot convert node of type {this.ValueType} into node of float");
}
